function preferences_save_item(elem)
{		
	$.ajax({
		type: "POST",
		url: "controllers/preferences_controller.php",
		data: {action:'field_update', name:elem.name, value:elem.value},
		success: function(msg){
			//alert("Preference " + elem.name + " saved with value " + elem.value)
		}
	 });
}
